Measurement E151M1374

Experiment:	EG4
Year:	2016	Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LL
ε_L:	0.0389
Q²:	0.0205 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7036

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	42.0	1.5815	0.7504	0.1809
0.25	54.0	-0.2529	0.9593	0.0414
0.35	30.0	0.1545	0.9866	0.0347
0.35	42.0	-0.7212	0.6795	0.0867
0.35	54.0	-0.5237	0.6322	0.0662
0.35	66.0	-0.4193	0.9765	0.056
0.45	18.0	-1.5484	0.9545	0.1772
0.45	30.0	-0.58	0.7771	0.072
0.45	42.0	0.2916	0.5959	0.0445
0.45	54.0	0.1093	0.5889	0.0324
0.45	66.0	-0.4155	1.0309	0.0556
0.45	222.0	-0.9862	0.8601	0.1152
0.45	234.0	-0.5028	0.7695	0.0642
0.55	30.0	-0.7944	0.7304	0.0945
0.55	42.0	-0.5231	0.6479	0.0662
0.55	54.0	-1.3316	0.567	0.1532
0.55	66.0	-1.0016	0.9882	0.1169
0.55	150.0	-2.265	0.7928	0.2572
0.55	162.0	1.0844	0.812	0.1259
0.55	174.0	0.2426	0.9001	0.0406
0.55	210.0	0.7678	0.8248	0.0916
0.55	222.0	-0.227	0.6657	0.0394
0.55	234.0	-0.2387	0.6243	0.0403
0.55	246.0	-0.3839	0.5586	0.0527
0.55	258.0	-0.4266	0.7313	0.0567
0.65	30.0	-0.1453	0.9806	0.0342
0.65	138.0	-0.0399	0.96	0.0303
0.65	150.0	0.1714	0.8158	0.0357
0.65	162.0	-0.0693	0.8783	0.031
0.65	174.0	0.4301	0.8171	0.057
0.65	210.0	-1.3854	0.7563	0.1591
0.65	222.0	0.1886	0.5956	0.0368
0.65	234.0	-0.9964	0.4592	0.1163
0.65	246.0	-0.0602	0.5012	0.0308
0.65	258.0	-0.3561	0.6117	0.0501
0.75	150.0	0.2987	0.6528	0.0451
0.75	162.0	-0.5311	0.781	0.067
0.75	210.0	0.5265	0.7818	0.0665
0.75	222.0	-0.0189	0.6055	0.0301
0.75	234.0	-0.0769	0.5017	0.0312
0.75	246.0	-0.291	0.4886	0.0445
0.75	258.0	0.4	0.6136	0.0542
0.85	210.0	-0.671	0.8775	0.0814
0.85	222.0	-0.0461	0.6285	0.0304
0.85	234.0	0.7683	0.5513	0.0917
0.85	246.0	-0.0666	0.4835	0.0309
0.85	258.0	0.493	0.659	0.0632
0.85	270.0	0.6286	0.7996	0.077
0.95	246.0	-0.3412	0.6813	0.0488

CLAS Physics Database